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Cement compositions containing a polysaccharide and a salt and method of cementing casing in a well

Patent ·
OSTI ID:6534016
;
A cement composition is described for the preparation of an aqueous cement slurry useful in cementing casing in the borehole of a well comprising a cement selected from Class A through Class H; at least one polysaccharide or mixture of polysaccharides having a solution time greater than about 10 minutes; and at least one salt and wherein the amount of the polysaccharide or mixture of polysaccharides is sufficient so that the viscosity of the aqueous slurry increases with an increase in temperature.
Assignee:
Chevron Research Co., San Francisco, CA
Patent Number(s):
US 4662943
OSTI ID:
6534016
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
AQUEOUS SOLUTIONS
BOREHOLES
BUILDING MATERIALS
CARBOHYDRATES
CAVITIES
CEMENTING
CEMENTS
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
DISPERSIONS
MATERIALS
MIXTURES
NATURAL GAS WELLS
OIL WELLS
ORGANIC COMPOUNDS
POLYSACCHARIDES
SACCHARIDES
SALTS
SOLUTIONS
SYNTHESIS
TEMPERATURE EFFECTS
TIME DEPENDENCE
VISCOSITY
WELL CASINGS
WELLS